Lesson Plan: Mixtures: Solutions and Solubility (LP0005)

Learning objectives

1. Mixtures contain more than one substance.
2. Solutions are mixtures composed of a solute and a solvent.
3. When the solute is dissolved, the particles cannot be seen.
4. Not all substances dissolve; those that do are called soluble.

Resources

• Crocodile Chemistry 1.5 (or later)
• LF0005a "Dissolving"
• LF0005b "Different Solutes"

Procedure

1. Ensure Crocodile Chemistry 1.5 (or later) is installed and the simulation files LF0005a and LF0005b are accessible.
2. Introduce and explain the learning objectives listed above.
3. Complete lesson activity LA0005.
4. Discuss the activity and the related points listed below.

Classroom discussion points

• Common examples of solutions and solvents, such as brine and ethanol.
• The use of solvents in the home, eg for cleaning and cooking.
• The use of solvents in chemistry.

Assessment

• Completion of lesson activity LA0005
• Response to classroom discussion of different solvents, solutes and solutions.

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